UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
REGION IX 75 Hawthorne Street San Francisco, CA 94105·3901

March 11, 2010

lon B. Roberts City Manager City ofVictorville 14343 Civic Drive P.O. Box 5001 Victorville, CA 92393-5001



### Re: Final PSD Permit for Victorville 2 Hybrid PowerProject

Dear Mr. Roberts:

In accordance with the Clean Air Act, as amended (42 U.S.C.7401 et seq.), the United States Environmental Protection Agency (EPA) has reviewed your application to construct a 563 megawatt hybrid solar and natural gas-fired combined cycle powerplantknown as the Victorville 2 Hybrid PowerProject in Victorville, San Bernardino County, California. After reviewingthe application, EPA drafted aproposed Prevention ofSignificant Deterioration (PSD) permit and public notice ofour decision to allow construction ofthe facility pursuant to the conditions in the proposed PSD permit, iffinalized. Thepublic notice requested public comment regarding ourproposed action andthe conditions in the proposed PSD permit. We published the public notice requesting comments on June 6, 2008, in the 

### Victorville DailyPress. EPA also sent the public notice requesting comments on ourproposed action to several parties, including those specified in 40 CFRPart 124. EPA made the proposed PSD permit and Ambient Air Quality Impact Report available at the Mojave Desert Air Quality Management District, the Victorville, Apple Valley, and Adelanto Public Libraries, on EPA's website and at ourRegion IX office in San Francisco, CA.

EPA received two commentletters on July 7,2008, one from Adams Broadwell Joseph & Cardozo (ABJC), on behalfofCalifornia Unions for Reliable Energy (CURE), and one from ENSR Corporation (ENSR), on behalfofthe City ofVictorville and Inland Energy. On October 7,2008, ENSRwithdrew its comment letter onthe proposedpermit, and on June 8, 2009, ABJC withdrew its comment letter. EPA received no othercommentsregarding the proposed action and PSD permit. Because ABJC and ENSR withdrew their comment letters, EPA has determined it is not necessary to respond to their comments in issuingthe final PSD permit allowing construction ofthe facility. Before AB1C withdrew its comment letter on June 8,2009,EPA's policy with respect to evaluatingparticulate matter with a diameter of2.5 microns or less changed. As described in an addendum to the Ambient Air Quality Impact Report, EPA requested the applicantto provide some additional analysis. Ourevaluation ofthe additional analysis did not result in any revised conditions and supported the conditions in the proposed PSDpermit.

Printed on Recycled PaperThe final PSD permit and addendum to the Ambient Air Quality Impact Report are enclosed. These documents, along with otherdocuments relevant to the final PSD permit, and the index for the administrative record are also available online at \v\",w.regulations.flO\' (Docket 10# EPA-R09-0AR-2008-0765), with a link from ourwebsite at www.epa.gov/region09/air/permit/r9-permits-issued.html#psd.

This final PSDpermit shall be effective on the date ofissuance pursuantto 40 CFR 124.15(b)(3). Ifyou have any questions regarding this matter, please contact Anita Lee of

ourPermits office at (415) 972-3958.
Sincerely, 

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Deborah Jordan Director, Air Division

Enclosure

cc: Eldon Heaston, Mojave Desert Air Quality Management District Allan DeSalvio, Mojave Desert Air Quality Management District (viaemail) Robert Fletcher, CaliforniaAir Resources Board John Kessler, California Energy Commission (via email) Tom Barnett, Inland Energy (via email) SaraHead, ENSR Corporation (via email)